The chain-reaction wreck early Saturday killed James McNair, 63, who was riding in a limo bus with Morgan. McNair was a comedian who performed under the name Jimmy Mack, said his sister, Valerie Daniel.

Comedians Ardie Fuqua and Harris Stanton also were injured, as was Jeffrey Millea, Williams said. One person was released Saturday, but Robert Wood Johnson University Hospital in New Jersey wouldn’t disclose that person’s name.

Truck driver Kevin Roper, 35, was charged with one count of death by auto and four counts of assault by auto. (Photo: New Jersey State Police)

Roper is charged with one count of death by auto and four counts of assault by auto after the tractor-trailer he was driving crashed into the limo bus, a statement from Middlesex County Prosecutor’s Office said.

Walmart spokeswoman Brooke Buchanan said Roper is an employee.

“This is a tragedy, and we are profoundly sorry that one of our trucks was involved,” Bill Simon, president and CEO of Walmart U.S., said in a statement.

“The facts are continuing to unfold. If it’s determined that our truck caused the accident, Walmart will take full responsibility.”

Chain-reaction crash

The wreck occurred about 1 a.m. ET Saturday on the turnpike in Mercer County, Williams said.

“The driver of the tractor-trailer failed to observe slow-moving traffic ahead,” Williams said. “At the last minute, he swerved to try and avoid the Mercedes limo bus but struck it from behind, forcing the limo to rotate and overturn.”

Four other vehicles were involved in the crash, the prosecutor’s office said, but no one in those vehicles was injured.

Williams said he does not believe alcohol played a role in the crash, but that is under investigation.